1: Do not use the AUTO setting for the eye when shooting SEMI, the AUTO setting are only for use when the marker is sett to AUTO, IT HAS SOME THING TO DO WITH THE TIMING ON THE EYE you will get unnesasery ball breaks when using the AUTO eye setting in SEMI mode.

1) get a faster hopper, try to take the plastic cover out from beneath the eye to increase the sensitivity of the eye. The eye modes AUTO, and ON do not have any efect on the speed the gun shoots. the only thing it does is changes the way the eye senses the ball.